From e8830e606ffee383f073e32313f11fc5692813fe Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Wed, 19 Sep 2012 22:14:29 -0600
Subject: [PATCH] Btrfs: fix memory leak in start_transaction()
This patch fixes memory leak of the transaction handle which happened
when starting transaction failed on a freezed fs.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
---
fs/btrfs/transaction.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 910ff8051ba93..35489644c2478 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -351,8 +351,10 @@ again:
*/
if (type != TRANS_JOIN_NOLOCK &&
!__sb_start_write(root->fs_info->sb, SB_FREEZE_FS, false)) {
- if (type == TRANS_JOIN_FREEZE)
+ if (type == TRANS_JOIN_FREEZE) {
+ kmem_cache_free(btrfs_trans_handle_cachep, h);
return ERR_PTR(-EPERM);
+ }
sb_start_intwrite(root->fs_info->sb);
}
--
2.30.2